CVE-2021-47950— Advanced Guestbook 2.4.4 Persistent XSS via Smilies
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I. Basic Information for CVE-2021-47950
Vulnerability Information
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Vulnerability Title
Advanced Guestbook 2.4.4 Persistent XSS via Smilies
Source: NVD (National Vulnerability Database)
Vulnerability Description
Advanced Guestbook 2.4.4 contains a persistent cross-site scripting vulnerability in the smilies administration interface that allows authenticated attackers to inject malicious scripts by manipulating the s_emotion parameter. Attackers can submit POST requests to admin.php with JavaScript code in the s_emotion field, which executes when administrators view the smilies tab.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Ampps Advanced Guestbook 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ampps Advanced Guestbook是印度Ampps公司的一个提供访客留言发布与管理功能的网站留言板系统。 Ampps Advanced Guestbook 2.4.4版本存在跨站脚本漏洞，该漏洞源于表情符号管理界面存在持久型跨站脚本，可能导致经过身份验证的攻击者通过操纵s_emotion参数注入恶意脚本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Ampps | Advanced Guestbook | 2.4.4 | - |
II. Public POCs for CVE-2021-47950
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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- AMPPSproduct
- Advanced Guestbook 2.4.4 Persistent XSS via Smilies | Advisories | VulnCheckthird-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-47950
IV. Related Vulnerabilities
Same weakness: CWE-79
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Advanced Custom Fields: Font Awesome Field <= 5.0.2 - Authen - CVE-2026-6646
The7 <= 14.3.2 - Authenticated (Contributor+) Stored Cross-S - CVE-2026-24662
Musetheque V4/XSS漏洞 - CVE-2026-44429
MCP Registry: Stored XSS in catalogue UI via attribute-quote
V. Comments for CVE-2021-47950
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